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Polymer Mixer Capable of Processing Polyolefin Polymers with Low Gels

IP.com Disclosure Number: IPCOM000244033D
Publication Date: 2015-Nov-05
Document File: 1 page(s) / 51K

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Abstract

A polymer mixer is provided capable of processing polyolefin polymers such as polyethylene polymers and articles made therefrom such as films having low gels

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Polymer Mixer Capable of Processing Polyolefin Polymers with Low Gels

Abstract: A polymer mixer is provided capable of processing polyolefin polymers, such as polyethylene polymers, and articles made therefrom, such as films, having low gels.

    In the production of polymer films, conventional wisdom indicates that co-rotating twin screw extruders with high shear elements, such as kneading blocks, are needed to make films with low gel levels. Lower shear devices, however, can also achieve polymer films with low gel levels. For example, a relatively lower shear Farrel continuous mixer, operating with long residence times and/or a higher fill level in the area where polymer mixing is occurring, is capable of achieving polymers with extremely low gel levels. This has been demonstrated on a commercial scale with polyethylene polymer films made from resins produced using metallocene catalysts.

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